<template>
  <el-form>
    <el-form-item>
      <el-radio v-model="radioValue" :label="1">日，允许的通配符[, - * ? / L W]</el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="2">不指定</el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="3">
        周期从
        <el-input-number v-model="cycle01" :min="1" :max="30" />-
        <el-input-number v-model="cycle02" :min="cycle01 + 1" :max="31" />日
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="4">
        从
        <el-input-number v-model="average01" :min="1" :max="30" />号开始，每
        <el-input-number v-model="average02" :min="1" :max="31 - average01" />日执行一次
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="5">
        每月
        <el-input-number v-model="workday" :min="1" :max="31" />号最近的那个工作日
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="6">本月最后一天</el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="7">
        指定
        <el-select clearable v-model="checkboxList" placeholder="可多选" multiple :multiple-limit="10">
          <el-option v-for="item in 31" :key="item" :label="item" :value="item" />
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>
<script setup>
const emit = defineEmits(["update"])
const props = defineProps({
  cron: {
    type: Object,
    default: {
      second: "*",
      min: "*",
      hour: "*",
      day: "*",
      month: "*",
      week: "?",
      year: ""
    }
  },
  check: {
    type: Function,
    default: () => {}
  }
})
const radioValue = ref(1)
const cycle01 = ref(1)
const cycle02 = ref(2)
const average01 = ref(1)
const average02 = ref(1)
const workday = ref(1)
const checkboxList = ref([])
const checkCopy = ref([1])
const cycleTotal = computed(() => {
  cycle01.value = props.check(cycle01.value, 1, 30)
  cycle02.value = props.check(cycle02.value, cycle01.value + 1, 31)
  return cycle01.value + "-" + cycle02.value
})
const averageTotal = computed(() => {
  average01.value = props.check(average01.value, 1, 30)
  average02.value = props.check(average02.value, 1, 31 - average01.value)
  return average01.value + "/" + average02.value
})
const workdayTotal = computed(() => {
  workday.value = props.check(workday.value, 1, 31)
  return workday.value + "W"
})
const checkboxString = computed(() => {
  return checkboxList.value.join(",")
})
watch(
  () => props.cron.day,
  value => changeRadioValue(value)
)
watch([radioValue, cycleTotal, averageTotal, workdayTotal, checkboxString], () => onRadioChange())
function changeRadioValue(value) {
  if (value === "*") {
    radioValue.value = 1
  } else if (value === "?") {
    radioValue.value = 2
  } else if (value.indexOf("-") > -1) {
    const indexArr = value.split("-")
    cycle01.value = Number(indexArr[0])
    cycle02.value = Number(indexArr[1])
    radioValue.value = 3
  } else if (value.indexOf("/") > -1) {
    const indexArr = value.split("/")
    average01.value = Number(indexArr[0])
    average02.value = Number(indexArr[1])
    radioValue.value = 4
  } else if (value.indexOf("W") > -1) {
    const indexArr = value.split("W")
    workday.value = Number(indexArr[0])
    radioValue.value = 5
  } else if (value === "L") {
    radioValue.value = 6
  } else {
    checkboxList.value = [...new Set(value.split(",").map(item => Number(item)))]
    radioValue.value = 7
  }
}
// 单选按钮值变化时
function onRadioChange() {
  if (radioValue.value === 2 && props.cron.week === "?") {
    emit("update", "week", "*", "day")
  }
  if (radioValue.value !== 2 && props.cron.week !== "?") {
    emit("update", "week", "?", "day")
  }
  switch (radioValue.value) {
    case 1:
      emit("update", "day", "*", "day")
      break
    case 2:
      emit("update", "day", "?", "day")
      break
    case 3:
      emit("update", "day", cycleTotal.value, "day")
      break
    case 4:
      emit("update", "day", averageTotal.value, "day")
      break
    case 5:
      emit("update", "day", workdayTotal.value, "day")
      break
    case 6:
      emit("update", "day", "L", "day")
      break
    case 7:
      if (checkboxList.value.length === 0) {
        checkboxList.value.push(checkCopy.value[0])
      } else {
        checkCopy.value = checkboxList.value
      }
      emit("update", "day", checkboxString.value, "day")
      break
  }
}
</script>

<style lang="scss" scoped>
.el-input-number--small,
.el-select,
.el-select--small {
  margin: 0 0.2rem;
}
.el-select,
.el-select--small {
  width: 18.8rem;
}
</style>